BQ24153 Datasheet, PDF (36/40 Pages) Texas Instruments – Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG Support

bq24153
bq24156, bq24158
SLUSA27 – MARCH 2010
VBUS
VIN
C1
PMID
C2
High
Frequency
Current
Path
L1
R1
SW
PGND
C3
Figure 38. High Frequency Current Path
Charge Current Direction
R _SNS
To Inductor
To Capacitor and battery
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V _BAT
BAT
Current Sensing Direction
To CSIN and CSOUT pin
Figure 39. Sensing Resistor PCB Layout
Vin+
Vin–
1µF
4.7µF
VBUS
PMID
SW
PGND
Figure 40. Input Capacitor Position and PCB Layout Example
36
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